Wireless charging technology using magnetically coupled resonators

Author

Kim, Yong-Hae ; Kang, Seung-Youl ; Cheon, Sanghoon ; Lee, Myung-Lae ; Zyung, Taehyoung

Author_Institution

Digital Paper Technol. Res. Team, Electron. & Telecommun. Res. Inst., Daejeon, South Korea

fYear

2011

fDate

9-13 Oct. 2011

Firstpage

1

Lastpage

3

Abstract

We are successful to charge the iPod touch using magnetically coupled resonators. The wireless charging was possible within the distance variation within 10 cm. The signal was generated and amplified with the balanced power amplifier structure which is useful for isolating the reflected power near the operation frequency of 9.4 MHz. To reduce the size of the receiving part, we implanted the thin coil on the polycarbonate substrate using ultrasonic. The receiving circuits are made of rectifying circuit using Schottky diode and over voltage protection circuit.

Keywords

Schottky diodes; inductive power transmission; mobile handsets; overvoltage protection; rectifying circuits; telecommunication power supplies; ultrasonic applications; Schottky diode; balanced power amplifier; frequency 9.4 MHz; iPod touch; magnetically coupled resonator; over voltage protection circuit; polycarbonate substrate; rectifying circuit; thin coil; ultrasonics; wireless charging technology; Acoustics; Nonlinear optics; Optical coupling; Optical propagation; Reliability; Synchronization; Voltage control; charging; magnetic; resonator; wireless;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference (INTELEC), 2011 IEEE 33rd International

Conference_Location

Amsterdam

ISSN

2158-5210

Print_ISBN

978-1-4577-1249-4

Electronic_ISBN

2158-5210

Type

conf

DOI

10.1109/INTLEC.2011.6099712

Filename

6099712